Acta Cryst. (2007). E63, m2251-m2252  [ doi:10.1107/S1600536807036872 ]

Heptaaqua(4-nitrobenzoato-²O,O')strontium(II) 4-nitrobenzoate dihydrate

B. R. Srinivasan, P. Raghavaiah and J. V. Sawant

Abstract: The title compound, [Sr(C₇H₄NO₄)(H₂O)₇](C₇H₄NO₄)·2H₂O, was synthesized from the aqueous reaction of strontium carbonate with 4-nitrobenzoic acid. The structure consists of a nine-coordinate heptaaqua(4-nitrobenzoato-²O,O')strontium(II) complex cation, an uncoordinated 4-nitrobenzoate anion and two solvent water molecules. The cations, anions and solvent water molecules are linked with the aid of several O-HO and C-HO interactions, resulting in a three-dimensional hydrogen-bonding network. The hydrogen bonding between a solvent water molecule and a symmetry-related solvent water molecule results in the formation of a water dimer.

Online 3 August 2007

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